/Engine/Plugins/Developer/Concert/ConcertUI/ConcertSharedSlate/Source/ConcertSharedSlate/Public/Session/History/SSessionHistory.h
Optional. The columns to show for each activity; they are shown after date time. Defaults to avatar color, client name, and operation.
WidgetArgsType & Columns &40; TArray< FActivityColumn > InArg &41;